Defined
What Is GMFV (Guaranteed Minimum Future Value)?
GMFV (Guaranteed Minimum Future Value) is the amount the lender guarantees your car will be worth at the end of a PCP. It's the balloon you pay only if you want to keep the car.
GMFV (Guaranteed Minimum Future Value) is the lump sum the lender guarantees your car will be worth at the end of a PCP — and the amount you'd pay to own it outright. It is set on day one from the car's price, your agreed mileage and the term, and it is the figure that keeps PCP monthly payments lower than HP.
The guarantee matters because it shifts depreciation risk onto the lender. If the car is worth less than the GMFV when you hand it back, the lender absorbs the loss; you simply walk away. If it is worth more, the difference is your equity to spend on the next car. The GMFV is the hinge on which the whole PCP deal turns.
What GMFV is, in plain English
**The GMFV is the lender's day-one promise of what your car will be worth at the end of the agreement — the figure the balloon payment is based on.**
When you take out a Personal Contract Purchase, you don't borrow the whole price of the car. You borrow the car's price minus your deposit, minus the GMFV. That leaves you financing only the depreciation — the drop in value — over the term, which is why the monthly payment is smaller than on HP. The GMFV itself is deferred to the final month, where it becomes the lump sum you pay to take ownership.
Some lenders call this figure the Guaranteed Future Value (GFV) rather than the GMFV; the words are interchangeable in the UK market. The key idea is the guarantee: the lender commits to the number upfront, regardless of how the used-car market moves between now and the end of the term. That floor under the value is what makes a PCP a PCP rather than a lease or a straight loan.
How GMFV works — the mechanics
Your monthly payments cover only the depreciation between the car's starting price and the GMFV, plus interest on that amount — the GMFV itself sits unpaid until the end.
Take the £20,000 car with a £2,000 deposit. The amount you finance is £18,000. If the lender sets the GMFV at £8,000, your monthly payments only have to repay the £10,000 of depreciation (£18,000 minus £8,000) over 48 months, plus the interest charged on the outstanding balance. The £8,000 GMFV stays on the books until month 48, when you decide what to do with it.
The lender sets the GMFV using three inputs: the car's cash price, the term length, and your agreed annual mileage. A longer term means more depreciation, so a lower GMFV. A higher agreed mileage means the car is expected to be worth less, so a lower GMFV — and, in a feedback loop, a larger chunk of depreciation to finance, so a higher monthly. This is why your mileage choice at the start moves both numbers at once.
The GMFV is fixed for the life of the agreement once it's set. It does not rise if the car holds its value better than expected, and the lender cannot lower it if the market falls. That one-way guarantee is your protection. The trade-off is that you pay interest on the GMFV for the whole term — money you're effectively borrowing and not repaying until the end — which is why the total cost to own a car on PCP is higher than on HP at the same APR.
GMFV vs balloon vs optional final payment
GMFV, balloon payment and optional final payment describe the same final lump sum on a PCP — different names for the same figure, used by different lenders and documents.
If your agreement lists an 'optional final payment' and a friend's lists a 'GMFV', you are looking at the same thing. Read more on the optional final payment glossary entry, or see the three compared on the balloon payment calculator.
| Term | Who uses it | What it means |
|---|---|---|
| GMFV | Commonly VWFS, Skoda, SEAT, Audi finance | The guaranteed end value the monthly is built around |
| Balloon payment | Brokers, generic guides, calculators | The lump sum due to keep the car |
| Optional final payment | Many high-street lenders' paperwork | The final sum, 'optional' because you can hand the car back instead |
| GFV | Some lenders' marketing | Guaranteed Future Value — interchangeable with GMFV |
GMFV vs market value at handback
What the car is actually worth at handback determines whether you leave with equity, a clean exit, or nothing owed — and the GMFV sets the line between each.
The guarantee works in one direction only: the lender absorbs losses below the GMFV, but you keep gains above it. That asymmetry is the value of the GMFV — your downside is capped while your upside is open. Work out your own end-of-term position on the part-exchange calculator.
| At handback | Car's market value | What happens |
|---|---|---|
| Worth more than GMFV | e.g. £9,500 vs £8,000 GMFV | £1,500 positive equity — yours to keep or roll into the next deal |
| Worth exactly the GMFV | £8,000 vs £8,000 GMFV | Hand back and owe nothing; no equity |
| Worth less than GMFV | e.g. £7,000 vs £8,000 GMFV | Hand back and owe nothing — the lender takes the loss |
A worked example
On a £20,000 car with a £2,000 deposit and an £8,000 GMFV over 48 months at 9.9% APR, the monthly is about £314 and the total to own is around £25,086.
The £8,000 GMFV is what you'd hand over in month 48 to keep the car. Pay it and the car is yours. Skip it and you return the car within the agreed mileage and condition terms and owe nothing more, provided you've stayed inside the limits. Or you part-exchange: if the car is worth £9,500 at handback, the £1,500 above the GMFV is equity you put towards the deposit on the next car.
Compare that with HP on the same car — about £452 a month and £23,695 total to own. The PCP monthly is £138 lower, but owning the car outright costs roughly £1,391 more in total, because you pay interest on the £8,000 GMFV for the full 48 months. The GMFV is the lever that trades a lower monthly for a higher total. Run your own numbers on the PCP calculator.
Worked example
When and why GMFV matters to a UK driver
The GMFV decides whether your PCP ends with equity in your pocket, a clean exit, or a decision about a large lump sum — so it shapes both your monthly and your next move.
The GMFV matters at the start because it sets the monthly payment you'll live with for years. A generous GMFV (the lender predicting strong resale value) shrinks the depreciation you finance and lowers the monthly — but it also inflates the lump sum waiting at the end. A conservative GMFV does the reverse. Two PCP quotes on the same car can look very different purely because the lenders disagreed on what the car will be worth in four years.
It matters most at the end, because the GMFV is the reference point for all three of your exit options. Worth more than the GMFV and you have equity to roll forward. Worth less and you hand the keys back without penalty, protected by the guarantee. Equal and you simply walk away. No other finance product gives you that three-way choice at the end of the term, which is why the GMFV is the figure to understand before you sign a PCP.
Common confusion and questions
The three confusions that cost PCP customers money: assuming the GMFV is a market valuation, assuming you must pay it, and assuming a higher GMFV is always better.
- 'The GMFV is what my car will be worth.' No — it's a guaranteed minimum, a floor. The car may be worth more, and any excess is your equity.
- 'I have to pay the GMFV at the end.' No. You pay it only if you want to keep the car. You can hand the car back within the mileage and condition terms and owe nothing more.
- 'A higher GMFV is always a better deal.' Not necessarily. A higher GMFV lowers the monthly but raises the lump sum you'd need to find to own the car, and it narrows the equity you can build.
- 'The GMFV changes if the market moves.' No. It is fixed at the start for the whole agreement, which is exactly where the guarantee's value comes from.
UK regulatory context
A PCP is a regulated consumer-hire or fixed-sum credit agreement under the Consumer Credit Act 1974, and the GMFV's guarantee and your end-of-term options are protected by FCA conduct rules.
PCP agreements fall under the Consumer Credit Act 1974, which gives you the right to end the agreement early through voluntary termination under Section 99 once you've repaid 50% of the total amount payable. The total amount payable includes the GMFV, which is one reason the 50% threshold can arrive later in the term than people expect. The FCA's Consumer Credit sourcebook (CONC) sets out how lenders must disclose the GMFV, the total amount payable and your end-of-term options in the pre-contract credit information, so you can see the figure and your choices before signing.
Since the FCA banned discretionary commission arrangements (DCAs) on 28 January 2021, brokers can no longer earn more by pushing a higher interest rate — a practice that previously inflated the cost of many PCP deals. If you have a complaint about how your GMFV was calculated or disclosed, complain to the lender first and then to the Financial Ombudsman Service free of charge. MoneyHelper publishes plain-English guidance on ending a PCP.
Frequently asked
Is the GMFV the same as the balloon payment?
Do I have to pay the GMFV?
Who decides the GMFV?
What happens if the car is worth less than the GMFV at the end?
What happens if the car is worth more than the GMFV?
Is a higher GMFV better?
Does the GMFV change during the agreement?
Sources
We cite regulators and official UK sources only.
- Financial Ombudsman Servicefinancial-ombudsman.org.uk
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